Climate and monthly weather forecast
Augusta, IL

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Weather in January

January, the same as December, in Augusta, Illinois, is a freezing cold winter month, with an average temperature fluctuating between 19°F (-7.2°C) and 31.1°F (-0.5°C). With its high average temperature of 31.1°F (-0.5°C) and a low of 19°F (-7.2°C), January is regarded as the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Augusta, is a cold month, with temperature in the range of an average high of 36.1°F (2.3°C) and an average low of 22.5°F (-5.3°C). February's onset records an average high-temperature of an icy 36.1°F (2.3°C), a near match to January's 31.1°F (-0.5°C). Weather in February »

Weather in March

March, the first month of the spring in Augusta, is a chilly month, with an average temperature ranging between min 34.3°F (1.3°C) and max 49.6°F (9.8°C). March marks a rise in the average high-temperature, moving from February's icy 36.1°F (2.3°C) to a chilly 49.6°F (9.8°C). Weather in March »

Weather in April

April is an enjoyable spring month in Augusta, Illinois, with an average temperature varying between 44.2°F (6.8°C) and 61.3°F (16.3°C). April indicates a change in the average high-temperature, moving up from a chilly 49.6°F (9.8°C) in March to a refreshing 61.3°F (16.3°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Augusta, Illinois, with an average temperature varying between 54.9°F (12.7°C) and 71.6°F (22°C). As Augusta enters May, the average high-temperature increases from the a refreshing 61.3°F (16.3°C) of April to an agreeable 71.6°F (22°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Augusta, Illinois, with temperature in the range of an average low of 63.7°F (17.6°C) and an average high of 80.4°F (26.9°C). June comes with a subtle rise, with the average high-temperature adjusting from a pleasant 71.6°F (22°C) in May to a warm 80.4°F (26.9°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Augusta, Illinois, with temperature in the range of an average low of 66.2°F (19°C) and an average high of 82.6°F (28.1°C). Augusta records the warmest temperatures in July, averaging a high of 82.6°F (28.1°C) and a low of 66.2°F (19°C). In July, the heat index is appraised at a hot 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Augusta, is another warm month, with an average temperature fluctuating between 82°F (27.8°C) and 63.7°F (17.6°C). Augusta commences August with an average high-temperature of a still warm 82°F (27.8°C), maintaining a close resemblance to the previous month. Weather in August »

Weather in September

September, the first month of the autumn in Augusta, is also a moderately hot month, with an average temperature fluctuating between 76.8°F (24.9°C) and 57.6°F (14.2°C). The commencement of September brings an average high-temperature of a still moderately hot 76.8°F (24.9°C), marking an inconsequential divergence from August. Weather in September »

Weather in October

October, like September, in Augusta, Illinois, is another enjoyable autumn month, with an average temperature ranging between min 46°F (7.8°C) and max 63°F (17.2°C). Transition into October marks a drop in the average high-temperature, moving from a moderately hot 76.8°F (24.9°C) in September to a refreshing 63°F (17.2°C). Weather in October »

Weather in November

November, the last month of the autumn in Augusta, is also a frosty month, with an average temperature fluctuating between 34.7°F (1.5°C) and 49.1°F (9.5°C). Start of November brings a shift in the average high-temperature, falling from October's refreshing 63°F (17.2°C) to a chilly 49.1°F (9.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Augusta, Illinois, with an average temperature fluctuating between 37°F (2.8°C) and 25.9°F (-3.4°C). The onset of December brings a small change in high-temperatures, falling from a frosty 49.1°F (9.5°C) in November to an icy 37°F (2.8°C). Weather in December »

Frequently asked questions

What is the coldest time of year?

January, with an average high of 31.1°F (-0.5°C) and a low of 19°F (-7.2°C), signifies the coldest month of the year.

How much does it rain?

In Augusta, during the entire year, the rain falls for 94.4 days and collects up to 7.76" (197mm) of precipitation.

When does it snow?

January through April, October through December are months with snowfall.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 6.3 days and typically aggregates up to 0.67" (17mm) of snow.

How many days does it snow?

In Augusta, during the entire year, snow falls for 20.5 days and aggregates up to 2.44" (62mm) of snow.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4.1h of sunshine.

What is the month with the lowest UV index in Augusta?

The month with the lowest UV index is January, with an average maximum UV index of 1.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 12.3 days and accumulates 1.1" (28mm) of precipitation.

When it does not snow?

In Augusta, snow does not fall in May through September.

When are the longest days in Augusta?

With an average of 15h and 0min of daylight, June has the longest days of the year.

What are the months with the most sunshine?

June and July, with an average of 10.2h of sunshine, are months with the most sunshine in Augusta, Illinois.

What are the months with the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What part of the year is the hottest in Augusta?

July, with average temperatures reaching a high of 82.6°F (28.1°C) and a low of 66.2°F (19°C), is the warmest month.

What is the most humid month?

July is the most humid month, with an average relative humidity of 83%.

What is the least humid month?

October is the least humid month, with an average relative humidity of 71%.

What is the driest month?

December is the month with the least rainfall. Rain falls for 4.3 days and accumulates 0.35" (9mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

Average temperature
Augusta, IL

Average temperature - Augusta, IL

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (31.1°F).

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure
Augusta, IL

Average pressure - Augusta, IL

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed
Augusta, IL

Average wind speed - Augusta, IL

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity
Augusta, IL

Average humidity - Augusta, IL

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall
Augusta, IL

Average rainfall - Augusta, IL

The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is December (0.35").

Average rainfall days
Augusta, IL

Average rainfall days - Augusta, IL

The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is January (3.3 days).

Average snowfall
Augusta, IL

Average snowfall - Augusta, IL

The month with the highest snowfall is January (0.67").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Augusta, IL

Average snowfall days - Augusta, IL

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Augusta, IL

Average daylight / Average sunshine - Augusta, IL

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days
Augusta, IL

Average sunshine days - Augusta, IL

The month with the most sunshine days is December (23.5 days).
The month with the least sunshine days is June (13.9 days).

Average visibility
Augusta, IL

Average visibility - Augusta, IL

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Augusta, Illinois, USA

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